The deal requires that 'irregular' migrants who arrive in Greece are returned to Turkey in full accordance with EU and international law.

Three international protection case work experts are to be sent to the Greek Islands from Ireland.

They will come from the Office of the Refugee Applications Commissioner (ORAC), and the Irish Naturalisation and Immigration Service (INIS).

Ireland will also be offering the services of two members of the Refugee Appeals Tribunal to support the establishment of appeals committees.

This will be on top of the four Irish experts sent earlier this year to Greece and Italy, to support the relocation of asylum seekers.

Acting Justice Minister Frances Fitzgerald said: "It is important that Ireland continues to play its part in the EU effort in tackling the refugee and migration crisis and I am pleased that, in spite of the pressure on our reduced staff resources, we are able to make a further and meaningful contribution".

Ireland is also considering a request from Frontex to EU states for the deployment of border guards to help in the return of people from Greece to Turkey.